This is a lovely mounding shape in my garden. My established clump, in sun and fertile soil in a fairly wet spring, is just hitting 3' high at the apex this year (2' has been more usual for it). Nice to have a solid and reliable clear white in the geranium clan.

Bought it years ago and in spite of not weeding, not watering and moving it, it still grows anywhere I put it. I moved it again last year and was mowing the area where it had been and found another plant. So either it self seeded or I cut it in half. I am zone 3a and we have had some terrible cold winters but it keeps coming back. Maybe because of the weather (or the lack of care) I haven't had any trouble with it taking over in the garden. It tends to stay in it's little spot.

This makes a rather leggier plant than the type having a more sprawling habit. It will scramble attractively through any neighbouring plants.
The flowers are a cool white, enhanced with a slight tinge of green
It is an easy plant to grow and is very useful to smother weeds